Q. My puppy ate rat poison I gave her peroxide immediately, she threw everything up is she going to be ok now
DESTINI R. HOLLOWAY, DVM
A. It depends on how much your pet ate and how effective the hydrogen peroxide was at completely emptying the stomach. There can still be more there which is why it is always recommended to follow up emesis (vomiting) with a cathartic (toxin absorbent) for any possible remaining toxins. For this I recommend you go to your local vet for Toxiban administration, the cathartic mostly used for toxin ingestion.
They will also check her hydration to ensure she doesn't need fluid therapy also (subcutaneous fluids typically).